Driver of a train moving at a speed 
sights a freight train at a distance 
ahead of him on
the same track moving in the same direction with a slow speed 
. He puts on the brakes and gives his train a constant deceleration 
. Then, there will be no collision, if
A
B
C
D
None of these
Text Solution
Verified by ExpertsThe correct answer is:
C
Relative velocity of first train with respect to other
= 
(0) = 
-2as
where, 
relative retardation
For avoiding collision, 
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